[Jakegr]

I lived on Oahu for three years and visited Kauai for a vacation twice. In my opinion it has the nicest scenery of all of the main islands. It's also the most laid back/ relaxing island to be.

Kauai itself has pretty poor diving, easily the worst of the 4 main islands. If you like diving, see if any dive companies are going to Niihau (a small island near Kauai) while you are there. They go a lot less during the winter due to ocean conditions, however there are periods of calm weather when they do go. It's one of the best places in dive in Hawaii and chances are good you'll see a monk seal.

As for non-diving activities, I really enjoyed doing day hikes along the Na Pali coast. You can find virtually un-occupied beaches, beautiful water falls and streams. I also suggest just driving and stopping wherever you see something that you like. There is pretty much a single road that goes 3/4 of the way around the island (there is no road along the Na Pali coast). Driving from the south end of the Na Pali coast all the way around the island to the north end will take you by the Waimea Canyon, Hanalei Bay and about a thousand other beautiful views.

Two good spots for snorkeling are Poipu and Kee beach park. Kee beach park also has some great hiking trails right beside it. They go along the coast and some eventually fork into the mountains where there are some huge water falls. I went snorkeling in a few other spots and thought Kee beach park was easily the best.

Also, if you like sushi eat poke (red tuna, usually yellow fin or big eye) while you are there. Foodland has really good poke. You can't get anything like it anywhere in Canada, including Vancouver.